/* ═══════════════════════════════════════════════════════════════════════════
   GILGAMEZ ADMIN PANEL — URL & NAVIGATION LINKS HUB STYLES
   Enforces Rule #6 (5-tier responsive layout) and Rule #1 (Technology Separation).
   ═══════════════════════════════════════════════════════════════════════════ */

.links-hub-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    max-width: none;
    margin: 0;
    padding-bottom: 16px;
}

/* ── Top Summary & Metric Bar ── */
.links-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 4px;
}

.links-metric-card {
    background: var(--bg-surface, rgba(22, 24, 34, 0.88));
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 14px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.links-metric-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

.links-metric-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(99, 102, 241, 0.12);
    color: #818cf8;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.links-metric-info {
    display: flex;
    flex-direction: column;
}

.links-metric-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary, #ffffff);
    line-height: 1.2;
}

.links-metric-label {
    font-size: 0.8rem;
    color: var(--text-muted, #94a3b8);
    margin-top: 2px;
}

/* ── Stale References Notice Banner ── */
.stale-references-banner {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(239, 68, 68, 0.12));
    border: 1px solid rgba(245, 158, 11, 0.35);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.1);
}

.stale-banner-text {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fbbf24;
    font-size: 0.92rem;
    font-weight: 500;
}

/* ── Tab Navigation Header ── */
.links-nav-tabs {
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    padding-bottom: 2px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin;
}

.links-nav-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted, #94a3b8);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 8px 8px 0 0;
}

.links-nav-tab-btn:hover {
    color: var(--text-primary, #ffffff);
    background: rgba(255, 255, 255, 0.03);
}

.links-nav-tab-btn.is-active {
    color: #38bdf8;
    border-bottom-color: #38bdf8;
    background: rgba(56, 189, 248, 0.08);
}

.links-tab-pill {
    padding: 2px 7px;
    font-size: 0.72rem;
    font-weight: 700;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted, #94a3b8);
}

.links-nav-tab-btn.is-active .links-tab-pill {
    background: rgba(56, 189, 248, 0.2);
    color: #38bdf8;
}

/* ── Tab Content Panes ── */
.links-tab-pane {
    display: none;
    flex-direction: column;
    gap: 20px;
}

.links-tab-pane.is-active {
    display: flex;
}

/* ── Filter / Search Toolbar ── */
.links-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    background: var(--bg-surface, rgba(22, 24, 34, 0.88));
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 12px;
    padding: 12px 16px;
}

.links-toolbar-search {
    position: relative;
    flex: 1;
    min-width: 240px;
    max-width: 380px;
}

.links-toolbar-search input {
    width: 100%;
    padding: 9px 12px 9px 36px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    color: var(--text-primary, #ffffff);
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.2s;
}

.links-toolbar-search input:focus {
    border-color: #38bdf8;
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

.links-toolbar-search svg {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted, #94a3b8);
    pointer-events: none;
}

.links-toolbar-filters {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ── Slugs Registry Table ── */
.links-table-wrapper {
    background: var(--bg-surface, rgba(22, 24, 34, 0.88));
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.links-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.links-table th {
    text-align: left;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    color: var(--text-muted, #94a3b8);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.76rem;
    letter-spacing: 0.04em;
}

.links-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.05));
    color: var(--text-primary, #ffffff);
    vertical-align: middle;
}

.links-table tr:last-child td {
    border-bottom: none;
}

.links-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* ── Slug Input Pill ── */
.slug-input-wrapper {
    display: flex;
    align-items: center;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    padding: 2px 8px;
    max-width: 360px;
    min-width: 220px;
    width: 100%;
    transition: border-color 0.2s;
}

.slug-input-wrapper:focus-within {
    border-color: #38bdf8;
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

.slug-prefix {
    color: var(--text-muted, #64748b);
    font-size: 0.82rem;
    user-select: none;
    padding-right: 2px;
}

.slug-input-field {
    background: transparent;
    border: none;
    color: #38bdf8;
    font-weight: 600;
    font-family: monospace;
    font-size: 0.88rem;
    outline: none;
    width: 100%;
    padding: 6px 0;
}

/* ── Aliases Tags ── */
.slug-aliases-list {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.slug-alias-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 7px;
    background: rgba(148, 163, 184, 0.12);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 6px;
    color: #94a3b8;
    font-size: 0.76rem;
    font-family: monospace;
}

.slug-alias-tag .badge-301 {
    color: #34d399;
    font-weight: 700;
    font-size: 0.68rem;
}

/* ── Navigation Reorder Items List ── */
.nav-items-manager-card {
    background: var(--bg-surface, rgba(22, 24, 34, 0.88));
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 14px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.nav-item-row {
    display: grid;
    grid-template-columns: 40px 1.5fr 2fr 1fr 90px 80px 70px;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.06));
    border-radius: 10px;
    margin-bottom: 8px;
    transition: all 0.2s;
}

.nav-item-row:hover {
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(15, 23, 42, 0.8);
}

.nav-item-row.is-header-row {
    background: transparent;
    border: none;
    color: var(--text-muted, #94a3b8);
    font-size: 0.76rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 14px 8px 14px;
    margin-bottom: 0;
}

.nav-item-drag-handle {
    color: var(--text-muted, #64748b);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
}

/* ── 5-Tier Responsive Layout Breakpoints (Rule #6) ── */

/* Tier 1: Desktop 4K / Large (1920px+) */
@media (min-width: 1920px) {
    .links-hub-container {
        max-width: 1540px;
    }
    .links-summary-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
}

/* Tier 2: Desktop / Laptop (1280px - 1440px) */
@media (max-width: 1440px) and (min-width: 1025px) {
    .links-hub-container {
        max-width: 1180px;
    }
}

/* Tier 3: Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    .links-summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .nav-item-row {
        grid-template-columns: 32px 1.2fr 1.8fr 1fr 70px 60px;
    }
    .nav-item-row .col-badge-hide-tablet {
        display: none;
    }
}

/* Tier 4: Mobile Landscape (481px - 767px) */
@media (max-width: 767px) {
    .links-summary-grid {
        grid-template-columns: 1fr;
    }
    .links-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .links-toolbar-search {
        max-width: 100%;
    }
    .nav-item-row {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 14px;
    }
    .nav-item-row.is-header-row {
        display: none;
    }
    .links-table th:nth-child(4),
    .links-table td:nth-child(4) {
        display: none;
    }
}

/* Tier 5: Mobile Portrait (320px - 480px) */
@media (max-width: 480px) {
    .links-nav-tabs {
        gap: 4px;
    }
    .links-nav-tab-btn {
        padding: 10px 12px;
        font-size: 0.82rem;
    }
    .stale-references-banner {
        flex-direction: column;
        align-items: flex-start;
    }
    .slug-input-wrapper {
        max-width: 100%;
    }
}